DTC P1506 & DTC P1508: Notes

Code Definition

DTC P1506: Idle Speed Control Actuator Opening Circuit Shorted
DTC P1508: Idle Speed Control Actuator Closing Circuit Shorted

NOTE: Before performing any diagnostic test, refer to WARNINGS, CAUTIONS and NOTES in DIAGNOSTIC TESTS .

NOTE: Testing individual components does not isolate shorts or opens. Perform all voltage tests using a Digital Volt-Ohm Meter (DVOM) with a minimum 10-megohm input impedance, unless stated otherwise in test procedure. Use ohmmeter to isolate wiring harness shorts or opens.